Radiator for cooling fluids.



UNI'IEI) STATES VIArfIdlblfI OFFICE.

GEORGE I. ONIONS 'AND GODFBIED ADOLPI-ISN, 0F BUFFALO, NEW YORK.

RADIATOR FOR COOLINGj FLUIDS.

To all whom 'it may concern.'

Be it known that We, GEORGE I. ONIoNs and Gonrlunn ADoLPHsoN, bothcitizens of the United States, and residents of Bualo, in the county ofErie and State of New .York, have invented certain new and usefulImprovements in Radiators for Cooling Fluids, of which the following isa specification. p.

yOur inventlon relates to heat-radiators, -of

,the ltype used in motor-vehicles for cooling the circulating fluidpassing around the engine cylinder.

The primar object of our invention .is the production of a highlyefl'icient tube heatradiator which can be more economically manufacturedthan-radiators of -a similar type now in use, and which provides in itsconstruction for a more effective and durable connect-ion between the.4air-tubes.'

Other objects are the provision of tubes which can be quickly andaccurately assembl'e'd without the use of skilled labor and which, when'assembled, present an even front and rear surface; to provide combinedstrengthening and separating means at the ends `of the tubes; 'toprovide the walls' of the tubes, at least in part, with. diagonalgrooves, and to otherwise improve on heat- .through one end of one ofthe tubes.

radiators with a v'iew of reducing the cost of production whileincreasing its durability and efficiency.

lVith these objects in view, our invention consists in the construction,arrangement,'

and combination of parts to be hereinafter described and particularlypointed out'in the subjoined claims.

Inthe drawings,-Figu1'e 1 is a front elevation of afradiator constructedaccording to our invention. Fig. 2 is an enlarged horizontal section'taken through a` number of assembled tubes lying in thesame horizontalplane. Fig. 3 is an enlarged vertical longitudinal section taken throughaportion of severalA horizontal rows of tubes.v Fig. fl'is anenlargedidetached perspective view of one Specification of LettersPatent.

`walls. of the collars.

Patented Apr. 11, 1911.

vApplication led December 19, 1908. Serial No. 468,324.

one end of a' tube showing a modified form of separator.

Referring now to the drawings in detail, similar letters of'referencerefer to similar parts in the several figures.

The reference letter A designates the veasing of the radiator. having adome or inletchamber B at its upper end, an outlet-chamber C at itslower end and air-chambers D at the sides. Within the space formed bysaid chambers are air-tubes 'E so arranged and separated that .spaces Fare formed between them which serve as water-passages connecting theinlet-chamber with the outlet-chamber. The tubes are preferably arrangedin horizontal rows with the centers of the tubes of alternate rowsin-the same plane.

In order 'to form the water-passages F, suitable spacing-means must beemployed at .the ends of the tubes, and for this purpose we provide eachtube at opposite ends with spacing-devices or separators in the form ofcollars G which are slipped over the ends of the tubes with the collarsof adjoining tubes in Contact. These collars, in addition to acting asseparators'to form the water-passages F, also servie to strengthen theends of the tubes where they are most. liable to damage.

In order to assure proper placement of the collarsuG- upon the ends ofthe tubes, they have inwardly directedflanges H-at their outerendslwhich bear against the edges ofthe tubes and serve as stops, so thatinplacing the' collars on' 4the tubes, it is simply necessary to slip themonto the tubes until said tlanges strike the ends of the same. Asthe'tubes are allofexactly the same length, a perfectly even front andrear surface is thus obtained for the block of assembled tubes, withoutthe exercise of any great vcare and without. the employment of skill-edlabor` -As the metal of which the .air-tubes are Y, formed is ,verythin, it is desirable 'that thel i fiangcs l-I extend bevond the innervsurfaces of the tubes` particularly owing to its being rather' difticultto form sharp angles on the collars with flanges extending only to theinner surfaces of the tubi-is. The portions of the flanges extendingbeyond the inner.' surfaces of the tubes'we recurve'or bend inward. asat I, and this greatly strengthens the tubes and prevents the walls ofthe latter being bent or forced away 'from the outer Moreover. itgreatly minimizes the possibility for leakage, to

which radiators 'of this type are susceptible K cause a whirling motionof 'the air pass 4i5 are applied to the tubes, the latter are asandshape to lit into thecasing of the radi- 4ends of the water-passagesbetween the when brought in contact with an object by collision orotherwise. A

The tubes herein shown are of rectangular formation in cross-section;and are formed of thin copper blanks J having several longitudinal rowsof diagonally disposed grooves K, which are preferably arranged at anangle of `fortylive degrees to the longitudinal, and When said blank isbent on the dotted 'lines L, shown in'Fig. 8, to form the tube thegrooves will be on three sides of the tubei 'i The grooves thus formedare on the insultil of the tubes and' as these grooves are stamped inthe blank, they form ribs K1 on the outer sides of the tubes. Thegrooves ing through lthe tubes and also increase the interior surfacearea, thus aiding considerablyin cooling/ the rWater passingbetweentHetubes. If desired, the tubes may be made hexagonal, octagonal,or given any other crosssectio'nal forni; the spacing-collars beijng, ofcourse, of corresponding'formation The sizes of the Water-passages maybe varied by using .collars of thicker o1' thinner metal, as may bedesired; and the tubes may be arranged in any position relative to eachother,.'so long as the Waterassage betweenV the tubes connect the inletciarnber A of the radiator With theoutlet-chainber B thereof.

In Fig. 9,. We have shown the flanges .H onthe collar terminating HushWit-h the inner surface of the tube to which it is applied., but it willnot be possible to. providethe collar with such sharp angles, withoutvan additional operation in the stamping of theV salue. In. some casesthis modified form may be desirable., and when costof production is notconsidered, may be preferable to some'users, since it does not restrictthe area of the openings through the tubes.

The collars may be made atight fit over the tubes, or they may besoldered to the tubes; and in either case, after the collars* sembledinto block form of the desired size ator, and when so `assembled and4held to gether. by suitable means with the exposed ends of the tubes inperfect alinement, the 4front and rear faces of the block of tubes aredipped into-molten solder so that they unite in a secureand Water-'tightmanner.

From the foregoing description, it will be understood that the heated'Water enter'- in'g the radiator is deliveredl to, the upper open-endedtubes. Irfpassin through said -passages, the Water4 iscooledz y the coolair passing through said tubesi-and escapes throughthe lowernnds of saidpassages into the outlet-chamber, from which it is deliv ered to themotor.

Having thus described our invention, what we claim. isfl. A device ofthe character described having a plurality of assembled air-tubes; saidtubes being united at their ends in a Watertight manner, each tubehaving spacing co1- lars fitting onto opposite-ends and contacting withthe collars of adjoining tubos to -form water-passages between thetubes, said collars bein bent inward over the edges of the materiaformingl the tube and recurved to enter the tube.

2. A device of the characterdescribed having a plurality of assembledair-tubes, each tube having spacingeollarsy fitting onto op posite endsand having their 'inner sides 1n contact with said tubeslar'id theirouter sides in contact with the collars of adjoining tubes to forniWater passages? between the latter, each collar'- having the outer endsof its Walls bent inward to face'the edges of said tubes. 3. A device ofthe character described haw ing a plurality of assen'ibled airtubes,each tube having spacing-coilarsiitting onto opposite ends andcontactingfwith the collars ward' over` the edges ofthe tubes androvided 'Witha short return portion fitting into the tube, said returnportions being shorter thanthe walls of said collars..

et. A radiator comprising a lurality of parallel tubes-each tube havingits ends sun rounded by collars which engage'v'vith the eollars ofadjacent tubes and each collar be- "ing provided at its outer end withanv 1n ternal reversely-folded fia-nge- Which turns around the' adjacentend of the respective tube and engages with the inner side of the same.

5. A radiator comprising ,a plurality of paralleli' tubes of hexagonalform in cross section, and hexagonal collars arranged on the outer sidesof the'ends of each tube and enga 'n'gvvith their flatsidesagainstvcorrespon Vingiiat sides of the collars of adjacent tubes andeachcollarhaving its outer end provided with a ilangevvhich is' turnedinwardly against the inner side of the respective tube.

signatures in the presence of two subscribing Witnesses.

Grouse I. oNIoN's. GonFi-unn AnoLrHsou.

4 `Witnesses:4

ELLA C.. PLUECKHAHN, EMIL NEUHART'I 1115, .In testimony-whereof, .wehave afiixed our

